title: A continuous wave 10 W cryogenic fiber amplifier at 1015 nm and frequency quadrupling to 254 nm.
abstract: A stable, continuous wave, single frequency fiber amplifier system at 1015 nm with 10 W output power is presented. It is based on a large mode double clad fiber cooled to liquid nitrogen temperature. The amplified light is frequency quadrupled to 254 nm and used for spectroscopy of the 6¹S → 6³P transition in mercury.
authors.forename: R
authors.initials: R
authors.lastname: Steinborn
authors.forename: A
authors.initials: A
authors.lastname: Koglbauer
authors.forename: P
authors.initials: P
authors.lastname: Bachor
authors.forename: T
authors.initials: T
authors.lastname: Diehl
authors.forename: D
authors.initials: D
authors.lastname: Kolbe
authors.forename: M
authors.initials: M
authors.lastname: Stappel
authors.forename: J
authors.initials: J
authors.lastname: Walz